phpBB : Critical Error

Error doing DB query userdata row fetch

DEBUG MODE

SQL Error : 145 Table './phpbb/phpbb_sessions' is marked as crashed and should be repaired

SELECT u.*, s.* FROM phpbb_sessions s, phpbb_users u WHERE s.session_id = '2abe5d1a0661b89adc89f89e42b321f6' AND u.user_id = s.session_user_id

Line : 319
File : sessions.php